From f85da084151c9454891124c999006857a354622a Mon Sep 17 00:00:00 2001
From: "Maciej W. Rozycki" <macro@linux-mips.org>
Date: Mon, 5 Feb 2007 16:28:26 -0800
Subject: [PATCH] [EISA] EISA registration with !CONFIG_EISA
This is a change for the EISA bus support to permit drivers to call
un/registration functions even if EISA support has not been enabled. This is
similar to what PCI (and now TC) does and reduces the need for #ifdef clutter.
Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
include/linux/eisa.h | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/include/linux/eisa.h b/include/linux/eisa.h
index 1ff7c13925258..fe806b6f030df 100644
--- a/include/linux/eisa.h
+++ b/include/linux/eisa.h
@@ -61,10 +61,20 @@ struct eisa_driver {
#define to_eisa_driver(drv) container_of(drv,struct eisa_driver, driver)
+/* These external functions are only available when EISA support is enabled. */
+#ifdef CONFIG_EISA
+
extern struct bus_type eisa_bus_type;
int eisa_driver_register (struct eisa_driver *edrv);
void eisa_driver_unregister (struct eisa_driver *edrv);
+#else /* !CONFIG_EISA */
+
+static inline int eisa_driver_register (struct eisa_driver *edrv) { return 0; }
+static inline void eisa_driver_unregister (struct eisa_driver *edrv) { }
+
+#endif /* !CONFIG_EISA */
+
/* Mimics pci.h... */
static inline void *eisa_get_drvdata (struct eisa_device *edev)
{
--
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